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Low Velocity Impact, Fatigue and Visco-elastic Behaviour of Carbon/E-glass Intra-ply fibre-Reinforced Nano-silica Toughened Epoxy Composite
Silicon ( IF 3.4 ) Pub Date : 2020-06-25 , DOI: 10.1007/s12633-020-00566-3
A. Johnny Varghese , B. Anand Ronald

This current research dealing the effect of adding high stiffness carbon fibre along with E-glass fibre and addition of nano-silica particles as a toughening agent in epoxy resin. The main aim of this research is to improve the damping, storage modulus and fatigue behaviour of glass-epoxy composite by using carbon fibre and nano-silica particles. The intra-ply glass and carbon fibre were prepared using handloom method with uniform weft and warp. The proposed composites were prepared using hand layup method followed by post-curing at 120οC. The low-velocity impact test results revealed that the composites made with intra-ply carbon glass fibre along with 2 vol% of nano-silica offered maximum resistance against penetration. Similarly, the fatigue behaviour revealed that the presence of 1 vol% nano-silica and carbon fibre provides the highest life cycle of 30150 counts. The visco-elastic properties of glass-carbon intra-ply fibre with 2 vol% of nano-silica composite possess storage modulus of 9.5 GPa. The scanning electron microscope images revealed more shear cups in the fractured matrix, which indicates improved toughness of the epoxy matrix.



中文翻译:

碳/玻璃纤维内增强纤维纳米二氧化硅增韧环氧树脂复合材料的低速冲击,疲劳和粘弹性行为

这项当前的研究涉及在环氧树脂中添加高硬度碳纤维和电子玻璃纤维以及添加纳米二氧化硅颗粒作为增韧剂的效果。这项研究的主要目的是通过使用碳纤维和纳米二氧化硅颗粒来改善玻璃环氧树脂复合材料的阻尼,储能模量和疲劳性能。内层玻璃和碳纤维采用手织法制备,具有均匀的纬线和经线。建议的复合材料是使用手工铺层方法制备的,然后在120 o进行后固化C.低速冲击试验结果表明,由层内碳玻璃纤维和2%(体积)的纳米二氧化硅制成的复合材料具有最大的抗渗透性。同样,疲劳行为表明存在1%(体积)的纳米二氧化硅和碳纤维可提供30150个计数的最高使用寿命。具有2体积%的纳米二氧化硅复合物的玻璃碳内部纤维的粘弹性为9.5GPa。扫描电子显微镜图像显示在断裂的基质中更多的剪切杯,这表明环氧基质的韧性提高。

更新日期:2020-06-25
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